Jinn (Arabic: Ø§ÙØ¬Ùââ, al-jinn), also romanized as djinn or anglicized as genies (with the more broad meaning of spirits), are supernatural creatures in early Arabian and later Islamic mythology and theology. An individual member of the jinn is known as a jinni, djinni, or genie (Ø§ÙØ¬ÙÙ, al-jinnÄ«). They are mentioned frequently in the Quran (the 72nd sura is titled SÅ«rat al-Jinn) and other Islamic texts.
Once you tighten up and lose range of motion in your arms, it reduces stride length, which is difficult to get back without burning a lot of energy. While sprinting, it is important to get a full range of motion with the arms. Remember, speed is a product of stride length and stride frequency. Stride length and frequency are determined, in part, by the motion of the arms. If you are lazy or passive with your arm action, you are limiting your potential for speed.
The Sprinting Gain. Sprinting requires a continuous bout of rapid, intense muscle contractions throughout your entire body, making the impact on your muscles immediate and exhausting. Primary lower-body muscles used in both sprinting and jogging include the quadriceps, hamstrings, glutes, iliopsoas and calves.Although you hit the same muscles in both exercises, you activate more muscle fibers during a sprint than you do during a long jog, leading to increased muscle growth.he Sprinting Gain. Sprinting requires a continuous bout of rapid, intense muscle contractions throughout your entire body, making the impact on your muscles immediate and exhausting. Primary lower-body muscles used in both sprinting and jogging include the quadriceps, hamstrings, glutes, iliopsoas and calves.